Continuity of the spectrum of norm-normal matrices
Michal Zajac (1978)
Mathematica Slovaca
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Displaying similar documents to “Perturbation theorems for Hermitian elements in Banach algebras”
Continuity of the spectrum of norm-normal matrices
Banach algebras with involution
Pták, V.
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A note on the general Hermitian solution to .
Groß, Jürgen (1998)
Bulletin of the Malaysian Mathematical Society. Second Series
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Gaur, A.K. (1997)
International Journal of Mathematics and Mathematical Sciences
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Earl Berkson, Ahmed Sourour (1974)
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Hermitian Operators on C (X, E) and the Banach-Stone Theorem.
Richard J. Fleming, James E. Jamison (1980)
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A Note on the Paper "Hermitian Operators on C(X, E) and Banach-Stone Theorem" by R.J. Fleming and J.E.Jamison.
Peter Greim, Eberhard Behrends (1980)
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The Shirali-Ford theorem as a consequence of Ptak theory for hermitian Banach algebras
Maria Fragoulopoulou (2002)
Studia Mathematica
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A simple application of Pták theory for hermitian Banach algebras, combined with a result on normed Q-algebras, gives a non-technical new proof of the Shirali-Ford theorem. A version of this theorem in the setting of non-normed topological algebras is also provided.